Heat oven to 400°F. Lightly spray cookie sheet with cooking spray.
Unroll pizza dough onto cookie sheet; press into thin even layer. Bake 8 minutes.
Remove partially baked crust from oven. Spread pesto over crust. Layer with zucchini, tomatoes and mozzarella slices.
- Bake 10 to 12 minutes longer or until cheese is melted and crust is light golden brown. Top with basil leaves and black pepper. Cool 5 minutes before serving.
Since fresh mozzarella is very soft, the easiest way to get thin slices is to cut it with unflavored dental floss.
Have more vegetables you want to throw on top? Try sliced yellow summer squash, mushrooms and even fresh bell pepper slices!